SOLAX POWER SDM630MCT V2 Din Rail Smart Meter User Manual
- June 15, 2024
- SOLAX POWER
Table of Contents
SOLAX POWER SDM630MCT V2 Din Rail Smart Meter
DIN RAIL SMART METER
FOR SINGLE AND THREE PHASE ELECTRICAL SYSTEMS
Introduction
This document provides operating, maintenance and installation instructions.
This unit measures and displays the characteristics of single phase two
wires(1p2w),three phase three wires(3p3w) and three phase four wires(3p4w)
networks .The measuring parameters include voltage(V),
frequency(Hz),current(A),power(kW/Kva/Kvar),import, export and total
Energy(kWh/kvArh).The unit can also measures Maximum demand current and power.
This is measured over preset periods of up to 60 minutes.
This unit is a 1A or 5A current transformer operated and can rugnoc ebed to
work with a wide range of CTs. Built-in pulse and Modbus or M-Bus
outputs.Configuration is password protected.
This unit can be powered from a separate auxiliary (AC or DC) supply.
Alternatively it can be powered from the monitored supply by linking the
voltage reference and neutral reference in to terminals 5 and 6 (Please refer
to wiring diagram).
Unit Characteristics
The Unit can measure and display:
- Voltage and THD% (total harmonic distortion) of all phases
- Line frequency
- Currents, current demand and current THD% of all phases
- Power, maximum power demand and power factor
- Active energy imported and exported
- Reactive energy imported and exported
This series includes 4 models
| SDM630MCT V2 | SDM630MCT-Mbus V2 | SDM630MCT-2T V2 | SDM630MCT-2T-Mbus |
|---|---|---|---|
| Multi-parameter measurement | Multi-parameter measurement | Multi-parameter | |
| measurement | Multi-parameter measurement |
Single Tariff
1A/5A CT operated
| Single Tariff
1A/5A CT operated
| Double Tariff 1A/5A CT operated| Double Tariff 1A/5A CT operated
RS485 Port Modbus RTU| M-Bus Communication| RS485 Port Modbus RTU| M-Bus
Communication
Bi-directional energy| Bi-directional energy| Bi-directional energy| Bi-
directional energy
Current Transformer Primary Current
SDM630MCT V2 Series is CT operated. you will need to set the correct ratio.
As an example: If using 100/5A CT, you will need to insure CT2 (Secondary) is
set to 5 and CT rate is 0020. You divide the primary by the secondary to get
the CT rate to be entered (100/5=20).
RS485 Modbus RTU / M-Bus
SDM630MCT V2 and SDM630MCT-2T V2 both meter have a RS485 port with Modbus RTU
protocol. SDM630MCT-MbusV2 and SDM630MCT-2T-Mbus has a M-Bus port complying
with EN13757-3.
Rs485 or M-Bus provide a means of remotely monitoring and controlling the
unit. Set-up screens are provided for settingup the communication port.
Pulse output
Two pulse outputs that pulse measured active and reactive energy. The Pulse 2
constant for active energy is 3200imp/kWh. (Terminals 11 & 12) The pulse width
for Pulse 1 can be set from the set-up menu (Terminals 9 & 10).
Start Up Screens
After a short delay, the screen will display active energy
measurements.
Measurements
The buttons operate as follows
Voltage and Current
Each successive press of the button selects a new parameter
Frequency and Power Factor and Demand
Each successive press of the button selects a new range:
Power
Each successive press of the button selects a new range: 
Energy Measurements
Each successive press of the button selects a new range:
Set Up
To enter set-up mode, press button for 3 seconds, the until the password screen appears.
To exit setting-up mode, press repeatedly until the measurement screen is restored.
Set-up Entry Methods
Some menu items, such as password and CT, require a four-digit number entry
while others, such as supply system, require selection from a number of menu
options.
Menu Option Selection
- Use the and buttons to scroll through the different options of the set up menu.
- Press to confirm your selection
- If an item flashes, then it can be adjusted by the and buttons.
- Having selected an option from the current layer, press to confirm your selection. The SET indicator will appear.
- Having completed a parameter setting, press to return to a higher menu level. The SET indicator will be removed and you will be able to use the and buttons for further menu selection.
- On completion of all setting-up, press repeatedly until the measurement screen is restored.
Number Entry Procedure
When Setting up the unit, some screens require the entering of a number. In
particular, on entry to the setting up section, a password must be entered.
Digits are set individually, from left to right. The procedure is as follows:
- The current digit to be set flashes and is set using the and buttons.
- Press to confirm each digit setting. The SET indicator appears after the last digit has been set.
- After setting the last digit, press to exit the number setting routine. The SET indicator will be removed.
Change Password
Press to exit the number setting routine and return to the Set-
up menu. SET will be removed.
DIT Demand Integration Time
This sets the period in minutes over which the current and power readings are
integrated for maximum demand measurement. The options are: off, 5, 10,15
30,60 minutes. 
Press to exit the DIT selection routine and return to the menu.
Warnings
Important Safety Information is contained in the Maintenance section.
Familiarize yourself with this information before attempting installation or
other procedures.
Symbols used in this document
Risk of Danger : These instructions contain important safety information.
Read them before starting installation or servicing of the equipment.
Caution: Risk of Electric Shock
Supply System
The unit has a default setting of 3Phase 4wire (3P4). Use this section to set
the type of electrical system. 
Press to exit the system selection routine and return to the menu. SET will disappear and you will be returned to the main set-up Menu.
CT
The CT option sets the secondary current (CT2 1A or 5A) of the current
transformer (CT) that wires to the meter.
For example, if using a 100/5A current transformer you will enter 0020, as you
need to divide the primary by the secondary to get the ratio (CT rate).
Please note for the MID approved version device, you will only have one
opportunity to set the ratio.
PT
The PT option sets the secondary voltage (PT2 100 to 500V) of the voltage
transformer (PT) that may be connected to the meter. 
For example, if set the ratio to be 100,it means the primary voltage equals secondary voltage x100.
Pulse Output
This option allows you to configure the pulse output. The output can be set to
provide a pulse for a defined amount of energy active or reactive. Use this
section to set up the relay pulse output—Units: kWh, kVArh
On completion of the entry procedure, press conform the setting
and press to return to the main set up menu.
Pulse rate
Use this to set the energy represented by each pulse. Rate can be set to 1
pulse per
0.01kWh/0.1kWh/1kWh/10kWh/100kWh.
(It shows 1 impulse = 10kWh/kVArh) 
Use and buttons to choose pulse rate.
On completion of the entry procedure, press conform the setting and press to
return to the main set up menu.
Pulse Duration
The energy monitored can be active or reactive and the pulse width can be
selected as 200, 100 or 60ms.
(It shows pulse width of 200ms) 
Use and buttons to choose pulse width.
On completion of the entry procedure press to confirm the setting and press to
return to the main set-up menu.
Communication
There is a RS485 port can be used for communication using
Modbus RTU protocol. For Modbus RTU, parameters are selected from Front panel.
RS485 Address (The range is from 001 to 247) 
On completion of the
entry procedure, press button to confirm the setting and press button to
return the main set-up menu.
M-Bus Address
On completion of the entry procedure, press conform the setting and press to return to the main set-up menu.
Baud Rate
On completion of the entry procedure, press conform the setting
and press to return to the main set-up menu.
Parity
On completion of the entry procedure, press conform the setting
and press to return to the main set-up menu.
Stop bits
On completion of the entry
procedure, press confirm the setting and press to return to the main set-up
menu.
Backlit set-up
The meter provides a function to set the blue backlit lasting time(
0/5/10/30/60/120 minutes).
Option 0 means the backlit always on here.
Press to confirm the setting and press to return to the main set-up menu.
CLR
The meter provides a function to reset the maximum demand value of current and
power.
Press to confirm the setting
and press to return to the main set-up menu.
Specifications
Measured Parameters
The unit can monitor and display the following parameters of a single phase
two wire(1p2w), three phase three wire(3p3w) or three phase four wire(3p4w)
system.
Voltage and Current
- Phase to neutral voltages 100 to 289V a.c. (not for 3p3w supplies).
- Voltages between phases 173 to 500V a.c. (3p supplies only).
- Percentage total voltage harmonic distortion (THD%) for each phase to N ( not for 3p3w supplies).
- Percentage voltage THD% between phases (three phase supplies only).
- Current THD% for each phase
Power factor and Frequency and Max. Demand
- Frequency in Hz
- Instantaneous power:
- Power 0 to 3600 MW
- Reactive power 0 to 3600 MVAr
- Volt-amps 0 to 3600 MVA
- Maximum demanded power since last Demand reset Power factor
- Maximum neutral demand current, since the last Demand reset (for three phase supplies only)
Energy Measurements
- Import/Export active energy 0 to 9999999.9 kWh
- Import/Export reactive energy 0 to 9999999.9 kVArh
- Total active energy 0 to 9999999.9 kWh
- Total reactive energy 0 to 9999999.9 kVArh
Measured Inputs
Voltage inputs through 4-way fixed connector with 2.5mm² stranded wire
capacity. single phase two wire(1p2w), three phase three wire(3p3w) or three
phase four wire(3p4w) unbalanced. Line frequency measured from L1 voltage or
L3 voltage.
Three current inputs (six physical terminals) with 2.5mm² stranded wire
capacity for connection of external CTs. Nominal rated input current 5A or 1A
a.c. Rms.
Accuracy
- Voltage 0.5% of range maximum
- Current 0.5% of nominal
- Frequency 0.2% of mid-frequency
- Power factor 1% of unity (0.01)
- Active power (W) ±1% of range maximum
- Reactive power (VAr) ±1% of range maximum
- Apparent power (VA) ±1% of range maximum
- Active energy (Wh) Class 1 IEC 62053-21
- Reactive energy (VArh) ±1% of range maximum
- Total harmonic distortion 1% up to 31st harmonic
- Response time to step input 1s, typical, to >99% of final reading, at 50 Hz.
Auxiliary Supply
Two-way fixed connector with 2·5mm2 stranded wire capacity. 85 to 275V a.c.
50/60Hz ±10% or 120V to 380V d.c. ±20%. Consumption < 10W.
Interfaces for External Monitoring
Three interfaces are provided:
- RS485/Mbus communication channel that can be programmed via protocol remotely.
- Relay output indicating real-time measured energy (configurable)
- Pulse output(Pulse 2) 3200imp/kWh (not configurable)
The Modbus configuration (baud rate etc.) and the pulse relay output assignments (kW/kVArh, import/export etc.) are congured through the set-up screens.
Pulse Output
The pulse output can be set to generate pulses to represent kWh or kVArh.
- Rate can be set to generate 1 pulse per:
- 0.01 = 10 Wh/VArh
- 0.1 = 100 Wh/VArh
- 1 = 1 kWh/kVArh
- 10 = 10 kWh/kVArh
- 100 = 100 kWh/kVArh
- 1000 = 1000 kWh/kVArh
- Pulse width 200/100/60 ms
- Relay Rating 240V ac 50mA
RS485 Output for Modb us RTU
- For Modbus RTU, the following RS485 communication parameters can be configured from the set-up menu:
- Baud rate 2400, 4800, 9600, 19200, 38400
- Parity none (default) / odd / even Stop bits 1 or 2
- RS485 network address nnn – 3-digit number, 1 to 247
- Modbus Word order Hi/Lo byte order is set automatically to normal or reverse. It cannot be configured from the set-up menu.
Reference Conditions of Influence
Influence Quantities are variables that affect measurement errors to a minor
degree. Accuracy is verified under nominal value (within the specified
tolerance) of these conditions.
- Ambient temperature 23°C ±1°C
- Input frequency 50 or 60Hz ±2%
- Input waveform Sinusoidal (distortion factor < 0·005)
- Auxiliary supply voltage Nominal ±1%
- Auxiliary supply frequency Nominal ±1%
- Auxiliary supply waveform (if AC) Sinusoidal (distortion factor < 0·05)
- Magnetic field of external origin Terrestrial flux
Environment
- Operating temperature -25°C to +55°C*
- Storage temperature -40°C to +70°C*
- Relative humidity 0 to 95%, noncondensing
- Altitude Up to 3000m
- Warm-up time 1 minute
- Vibration 10Hz to 50Hz, IEC 60068-2-6, 2g
- Shock 30g in 3 planes
Maximum operating and storage temperatures are in the context of typical daily and seasonal variation.
Mechanics
- DIN rail dimensions 72 x 94.5 mm (WxH) per DIN 43880
- Mounting DIN rail (DIN 43880)
- Sealing Ip51 (indoor)
- Material Self-extinguishing Ul94 V-0
Maximum operating and storage temperatures are in the context of typical daily and seasonal variation.
Mechanics
- DIN rail dimensions 72 x 94.5 mm (WxH) per DIN 43880
- Mounting DIN rail (DIN 43880)
- Sealing Ip51 (indoor)
- Material Self-extinguishing Ul94 V-0
Declaration of Conformity(for the MID approved version meter only)
We Zhejiang Eastron Electronic Co.,Ltd.
Declare under our sole responsibility as the manufacturer that the poly phase
multifunction electrical energy meter “SDM630MCT V2 Series ” correspond to the
production model described in the EU -type examination certificate and to the
requirements of the Directive 2014/32/EU EU type examination certificate
number 0120/SGS0142. Identification number of the NB0120
Dimensions
Installation
The wiring diagram of SDM630MCT V2 series has little difference from different models. please make sure the wiring is correct before turning on power of the meter.
Current and Voltage inputs
Definitions of other terminals
Zhejiang Eastron Electronic Co., Ltd.
- Building 13, No 1369. Chengnan Rd.
- Jiaxing, Zhejiang, CHINA
- Email : sales@eastrongroup.com
- TM Web :www.eastron.com.cn
- Tel :86 573 83698881/83698882
- Tel :86 573 83698883